diff --git a/exo4.py b/exo4.py
index ce0c4b4..776ae90 100644
--- a/exo4.py
+++ b/exo4.py
@@ -11,6 +11,8 @@ def bublesort_multi_array(array):
                 array[i] = temp
                 swap += 1
     return array
+# O(n²+n²)
+# = O(n²)
 
 def sort_bubble_array(array): #merci votre td1
     swap = 1
@@ -22,7 +24,7 @@ def sort_bubble_array(array): #merci votre td1
                 array[i-1]= array[i]
                 array[i] = temp
                 swap += 1
-
+#O(n²)
 
 # testt
 array = [[0, 3, 2], [9, 4, 5], [4, 1, 3]]